Ventilating means



S. A. WELLMAN.

VENT-{EATING MEANS.

APPLICATION FILED NOV. 14, 1918.

Patented Apr. 6, 1920.

Barr 4 s VENTILATING MEANS.

SETH A. WELLMAN, or MAsonoI'rY, IOWA.

Specification of Letters Patent.

Application filed November 14, 1918. Serial No. 262,466.

To all whom it may concern:

Be it known that I, SETH A. WVELLMAN, a citizen of the United States of America, and resident of Mason City, Cerro Gordo county, Iowa, have invented a new and useful Ventilating Means, of which the following is a specification.

The object of this invention is to provide the top and bottom of the door so that fresh air may enter and foul air escape, means also being provided for suspending ventilation at times.

A further object of thisinvention is to provide improved means for ventilating a room when the door thereto is in closed position, by providing spaces between upper and lower margins of said-door and the adjacent frame members, means also being provided for automatically closing such spaces at times when the door is closed, to suspend the ventilating function, and for opening said 7 spaces when the door is opened.

A further object of this invention is to provide means for ventilating a room when the door is in closed position, by providing spacesbetween upper and lower margins of said door and the adjacent frame members, shutters being hinged to said frame members and adapted to closesaid spaces at times to suspend the ventilating function; means also being provided for automatically moving said shutters to closing position when the door is closed and to horizontal or open position when the door is opened.

My invention consists in the construction, arrangement and combination of elements hereinafter set forth, pointed out in my claims and illustrated by the accompanying drawing, in which-i Figure 1 1s an elevation, partly in section,

illustrating a door, in closed position, equipped with my improved ventllatlng devices, such devices being in position for sus- Patented Apr. 6, 1920.

pending the ventilating function. Fig. 2 is "a horizontal sectional View on the line 22 of Fig. 1, on an enlarged scale. .Fig. 3 is a detail vertical section,on a further enlarged scale, taken substantially on the line 3-3 of Fig. 2, a portion of the section being on another plane to illustrate certain details of 3 construction. Fig. dis a plan, partly in section, illustrating the devices for holding the threshold shutter in horizontal position, the

' door being omitted. Fig. 5 is a cross-section rially less length than the vertical space bebe closed against a stop 12 carried by the i I opposite jamb 13. The door 10 is of matei tween the floor 14 and head casing 15, being 1 spaced at its lower margin from said floor and at its upper margin from the header 16, thus providing lower'and upper ventilating spaces through which fresh air may enter the room to which said door communicates, and foul or heated air may escape; this provision being especially desirable where vacuum or pipeless heating systems are employed. My

clear; such devices alsoincluding means for holding said shutters in horizontal position v at times irrespective of the positionofthe door,-\vhen it is desired to render the ventilation effective.

The numeral 1 7 designates a rigid threshd A old member mounted on the floor 14 be- 7 tween the jambs 11, 13 but not extending beneath the door 10. A movable threshold member 18, which may be called a threshof the inner margin of the closed "door,

such line, being indicated by the numeral old shutter, is hinged at one margin to the ,rigid threshold 17 and articulates on a transverse line substantially in the plane i 19 in Fig. 4". The'rigid and hinged threshold members may be beveled at their outer marginal portions in a common manner, as

shown in Fig. 3, and together compass the One. of the hinges employed for securing the threshold shutter '18 to the'rigid threshold -17 is shown in detail in Fig; 5, and comprises a hinge member 20 fixed to and in the same horizontal planeas said rigid membe gand a hinge member 21 fixed to the end of the threshold shutter, saidmem'bers being pivotally connect'ed'by a hinge pin 22. The

hinge member 21 is formed with a tongue 21 extending within a fork of the hinge member 20* and the extremity of said tongueis rounded'and'spjaced from the end of the fork. A flexible hanger orstrap23 is fixed atoneend to the upper surface of the tongue 21 as by a tael; or screw 24, extends over the rounded end of said tongue and through the space between it and the fork of the other hinge member, througha hole 14 in the floor, and has a weight 25-fixed to its depending end portion. The weights 25, one at each end of the threshold shutter, tend to overbalance said member and hold it'in vertical or closingposition.

(An upper shutter 26 is hinged at one margin, in any suitable manner, to the header 16, and is adaptedto iill the' ventilating space at the upper margin of the door 2 10. The upper shutter 26 tends by gravity to remain in depending vertical or closing pos t1on,'1n the same vertical; plane as the closed" door.

A shutter moving arm is pivoted at one end by a screw or bolt 27 to the upper face or" the rigid threshold 17, adjacent the jamb 11 and also adjacent the line of articulation of the threshold shutter 18. The shutter moving arm comprises a horizontal port-ion 28 rcstingupon the threshold 17'; a vertical portion 29 integral-with and rising from the free end of said horizontal memilier and on the end of said short horizontalportion,-

and locatedon the opposite side ol the door from thep1vot-27. A latching bar32- is pivoted at one end by a screw or bolt 33 to I the lower'margin and on the outer'face of" the door 10 and is offset slightlyaway v "from" said door throughout the major portion of itslength, thus providing a space between it and the door into which the lug 31 01 theshutter moving arm is received and adapted for a restricted sliding movement asthei-door is moved on its hinges. Thus means is provided for operatively connect ing the door-to the threshold shutter.

A similar shutter operating arm, designated "ene'rally bythe numeral ea, is provided for the upper shutter 26, and is hinged to the header 16, asses z'i'crossthet'op of the door andha's a lug engaging between said bars 32 and 35-respectively. The lever 36' is preferably providedwitlia handle ll) for manual operation thereof.

'I'nuse, theparts being-arranged as shown and described; theslintters 18' and will normally remain -in'- vertical orclosing position, and fill the ventilating spaces at the botthin and'top' of" the" door"andsuspend the ventilating function. It is undesirable to permit the shutters to remain iirsuch position except when the door is closed, especiallj, the -thr'eshohlfi shutter 18,-as it woulal fornran obstruction between. thedoc r j am bs, and it 'isforthis; reasonyin part,-that the shutter moving arms are providedlVh'en the-door -10 ismov'ed toopen position, pressure is applied to the lugs 3i of said'arins and thearms are'operated'aeross the-lines of articulation o'ftlie shutters, the vertical portions 29 of said arms engaging the inner faces of the shutters and, through continued movement of said (1001', movingsaidshutters to-theirhorizontal positionst With respect to the lowermost arm, this has the efie'ctbf positioning the throshold'shutte 18 flat onthefl'oor iet and-in the same horizontal plane as the rigid threshold member 17, thus pr ividing nori'nalthreshold between the lower" ends of the jambs andpermitting free wa king orino'ving of articles tliETOUglltliO"(lOOi way. It is to be understood that in this position the longeror low if horizoi l-arni 28 of the shutter movingafrin engages the uppeusui'iiace of the threshold shutter and hol ds'it in the horizontal" position above described; while 1 the upper ar nr"84 holdsthe upper shutter 26 in a similaaflnosition; Glosing-smevement of the door, when carried" to completion, carries the shutter moving arms out of engagement with the shutters ,and permits them to assume the vertical:posi-, tion, because of gravity in the case of the uppershutter 26 and because of the: weights in the case of the threshold shutter 18.

When it is desired to suspend the closing functions of the shutters 18 and 26, and thus establish the ventilating function, the. door 10 is first moved to open position, thus causing the shutter moving arms to move and hold the shutters to the horizontal position. Then the lever 36 is oscillated to apply draft in opposite directions on the links 38, 39 and oscillate the latching bars 32, toward the vertical center of the door and releasing them from the lugs 31 of the shutter moving arms. Thereafter the door 10 may be moved in either direction without afi'ecting the shutter moving arms or shutters, the shutter moving arms holding the shutters in the horizontal positions and the ventilating spaces at top and bottom of the door remaining open when the door is closed. An opposite movement of the lever 36, when the door is openand in contact with the lugs 31, will reestablish the connection between the door and shutter-moving arms through the latching bars.

The threshold shutter 18 may in certain conditions be used independently of the upper shutter, or vice versa; and either shut- V ter may be connected to the door independently of the other if desired.

I claim as my invention 7 1. Ventilating means, comprising, in combination with a door mounted for oscillation in a frame, said door being spaced at its 7 upper and lower margins from said frame to provide ventilating spaces, shutters pivoted on transverse horizontal axes and adapted at times to close said ventilating spaces, and connections between said door and shutters for moving said shutters to horizontal position when the door is opened and to vertical closing position when the door'is closed. 7

2. Ventilating means, comprising the combination with a door mounted for oscillation in a frame, said door being spaced at its upper and lower margins from said frame to provide ventilating spaces, of shutters pivoted on transverse horizontal axes and adapted at times to, close said ventilating spaces, and detachable connections between said door and shutters for moving the latter to horizontal position when the door is opened and to vertical closing position when the door is closed. a '8. Ventilating means, comprising the combination with a door mounted for oscillation in a frame, said door being spaced at its upper and lower margins from said frame to provide ventilating spaces, of shutters pivotedon transverse horizontal axes and adapted at times to close said ventilating spaces, anddetachable connect ons between said door and shutters for mov ng the. latter to'horizontal position when the Y door is opened and'to vertical closing position when the door is closed, saidconnecter hinged on a transverse horizontal axisv and adapted at times to close the space he neath said door, a shutter moving arm pivoted on a vertical axis and adapted at times to extend across and hold said shutter in horizontal position, and detachable connections between said door and arm.

' 5. Ventilating means, combination with a door mounted for oscillation and spaced at its lower margin from the floor to provide'a ventilating space, of a rigid threshold member, a movable threshold shutter hinged on a transverse hori-v zontal axis to said rigid threshold and adapted normally to close the space beneath said door, a shutter moving arm pivoted on said rigid threshold and adapted to engage and close said threshold shutter to horizontal position, and detachable connections between-said door and arm.

6. Ventilating means, comprising the combination with a' door mounted for oscillation and spaced at its lower margin from the floor to provide a ventilating space, of a rigid threshold member, a movable threshold shutter hinged to said rigid mem per and adapted to bein vertical position at times to close the space beneath said door, means normally acting to hold said shutter in such vertical closing position, an angular shutter moving-arm pivoted 011 said rigid threshold and adapted to engage said shut-: ter and move and hold" it to horizontal po-' sition, said arm being formed with a lug adapted to engage the door on theopposite side from its pivot, and a latching bar adapted to connect said lug to said door.

7. Ventilating means, comprising combination with a door mounted for-oscilation in a frame and spaced at its upangular shutter moving arms pivotally' mounted and adapted to engage said shutters when oscillated in one direction, to

the

comprising the 7 mot'e and hold said shutters to horizontal arms are oscillated With the dooryand posltions, saldshutter -m0v1'n'g: arms bemg means f0rcon]unct1Ve1y re'le'aslng :sald latch formed wlth' members extendmg across the mg-barsx 10 adjacent margins of'the doorand with lugs Signed at Mason City-,i in theiicountyxof r engaging the opposite side thereof, latoh- Cerro Gordo-andi State-oflowa, thisl l'th in'gi barspivoted-011 said doo'r'and adapted dayof August511918. tofconne'ct sa-id lugs thereto, whereby said SETH AVWETITMANL 

